
Unit14重点知识辅导.doc
4页Unit 14 重点知识一、 重点词汇、短语学习water【原文回放】Have you watered the plants yet? 你已给植物浇水了吗?【词语点击】water 在该句中是及物动词,意为“浇水;浇灌”;water还可用作不可数名词,意为“水”;当water用作复数(waters)时,意为“(某一江、河、湖、海的)水域”、“海域”如:It’s very dry, and we must water the vegetable garden. 天很干,我们应该浇菜园了Would you please give me some water? 请给我一些水好吗? We were still in British waters. 我们仍在英国的领海上appear【原文回放】They’re going to appear on CCTV next month. 下个月他们将出现在中央电视台的节目中词语点击】appear在此是不及物动词,意为“出现;显示”;appear还可表示“似乎;好像”,后接不定式、形容词或从句,强调表面上给人某种印象它的反义词是disappear;名词是appearance,表示“外表;外貌”。
如:The teacher appears quite old. 这位老师显得很老 He appeared to be talking to himself. 他似乎在自言自语 The plane disappeared in the cloud.飞机在云层里消失We don’t know why he made no appearance at the office today.我们不知道他今天为什么没来办公室turn【原文回放】No, it’s your turn. 不对,这次轮到你了词语点击】turn在此用作名词,意为“一次机会”、“顺序”、“轮流”,常用短语有take turns to do sth. “依次;轮流”、 in turn“依次;轮流;逐个”、by turns “轮流”turn 还可用作动词,意为“转动;转向;翻转”;用作系动词,意为“变得”如:Please turn left. 请向左转We take turns to make dinner. (= We make dinner by turns.)我们轮流做晚饭 It’s your turn to recite the passage.轮到你背诵这篇课文了。
Turn it round and let me see the other side. 把它转过来,让我看另一面In autumn the leaves turn yellow. 秋天树叶变黄clean out【原文回放】 I haven’t cleaned out the refrigerator yet. 【要点点拨】clean out意为“清除、打扫干净”,是指将某物的内部打扫干净可以用英语解释为:to clean the inside of a room, house etc.so far【原文回放】 This program started in 1980, and so far has brought thousands of overseas Chinese students to China to look for their families’ roots. 【要点点拨】so far意为“到目前为止”,相当于up to now 或 till now, 可用于句首或句末,在句中用作状语,表示范围、程度或距离thanks to【原文回放】 Thanks to In Search of Roots, I’m beginning to understand my Chinese roots and who I am.【要点点拨】thanks to是一个固定短语,多表达一种原因,意为“由于;多亏了……;幸好……”, to在此是介词,其后常跟名词或代词。
look forward to【原文回放】 ..., and I’m looking forward to finding out more about my roots during my time here. 【要点点拨】look forward to意为“期待”,指带着愉快的心情期待着其中to是介词,后接动词时要用v-ing形式二、 重点句型学习... most of ...【原文回放】 I’ve already done most of my jobs. 【句型解读】most of ...表示“大多数的;大部分的”,后面可以接可数名词或不可数名词作主语时,谓语动词的人称和数要同of后面的名词或代词一致若most of 跟的是名词,名词前需要加定冠词the如:Most of them don’t agree with him. 他们中的大部分不同意他的意见Most of the corn grows in the north of China. 玉米大部分在中国的北方种植 have sth. to do ...【原文回放】 I have so many chores to do today. 【句型解读】have sth. to do 表示“有……要做”,to do 用作后置定语。
如:I have a lot of homework to do this Sunday. 这个星期日我有许多作业要做三、 重点语法学习————现在完成时【现在完成时的构成】现在完成时是由“助动词have / has + 动词的过去分词”构成have, has均为助动词,无实际意义,只起构成时态的作用,不可省略现在完成时的用法】1. 表示一个过去发生并结束的动作对现在产生的结果和影响常与just, before, already, ever, never, before, yet, not ... yet等连用already“已经;已”常用于肯定的现在完成时态句式中;yet“还;尚;仍;已经”常用于疑问、否定句式中;just“刚刚;恰好;方才”常用于肯定句中;ever意为“曾经”可用于疑问句或否定句中如:I have already read this book. 我已经读过这本书了读”这一动作发生在过去,对现在造成的影响是“知道书中的内容”Has the place changed a lot yet? 这个地方已经改变许多了吗?I haven’t ever spoken to her. 我未曾和她说过话。
2. 表示过去已经开始,持续到现在,而且还能继续下去的动作或状态,往往和表示一段时间的状语连用如:today, this week, these days, in the past few days, for+时间段,since + 时间点,since+从句(用一般过去时态)如:Daniel has watched TV since 7:00. 自从七点钟开始Daniel就一直在看电视I’ve lived here for ten years. 我已在这儿居住十年了Has Mr. Black taught in this school since he came to China? 自从布莱克先生来到中国就在这所学校教书吗?友情提示:这类句子如果是肯定形式,句中谓语动词必须用延续性动词如:I have had this dictionary for three years.这本字典我买了三年了。
